Dose Of Lorazepam Is It Safe To Up My Dose Of Lorazepam?

Is it safe to up my dose of Lorazepam? - dose of lorazepam

My doctor has helped me to 0.5 mg lorazepam at bedtime, my dream! I took it for one night and did nothing! I wondered if I could my dose to 1 milligram for one night! I do not know have as much work as I know it is possible to create a dependency on this medication! But I have to sleep on my two years at home!
HELP!